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50 lines
1.1 KiB
SQL
50 lines
1.1 KiB
SQL
SET allow_deprecated_functions = 1;
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SET output_format_pretty_row_numbers = 0;
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SELECT
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neighbor(n, -2) AS int,
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neighbor(s, -2) AS str,
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neighbor(lcs, -2) AS lowCstr
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FROM
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(
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SELECT
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number % 5 AS n,
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toString(n) AS s,
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CAST(s, 'LowCardinality(String)') AS lcs
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FROM numbers(10)
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);
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drop table if exists neighbor_test;
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CREATE TABLE neighbor_test
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(
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`rowNr` UInt8,
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`val_string` String,
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`val_low` LowCardinality(String)
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)
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ENGINE = MergeTree
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PARTITION BY tuple()
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ORDER BY rowNr;
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INSERT INTO neighbor_test VALUES (1, 'String 1', 'String 1'), (2, 'String 1', 'String 1'), (3, 'String 2', 'String 2');
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SELECT
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rowNr,
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val_string,
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neighbor(val_string, -1) AS str_m1,
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neighbor(val_string, 1) AS str_p1,
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val_low,
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neighbor(val_low, -1) AS low_m1,
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neighbor(val_low, 1) AS low_p1
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FROM
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(
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SELECT *
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FROM neighbor_test
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ORDER BY val_string, rowNr
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)
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ORDER BY rowNr, val_string, str_m1, str_p1, val_low, low_m1, low_p1
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SETTINGS output_format_pretty_color=1
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format PrettyCompact;
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drop table if exists neighbor_test;
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